Air purifier



FIG. 1 is a front elevational view of a first embodiment of an air purifier showing our new design;

FIG. 2 is a rear elevational view of the first embodiment thereof;

FIG. 3 is a left side view of the first embodiment thereof;

FIG. 4 is a right side view of the first embodiment thereof;

FIG. 5 is a top plan view of the first embodiment thereof;

FIG. 6 is a bottom plan view of the first embodiment thereof;

FIG. 7 is a top, front and right side perspective view of the first embodiment thereof;

FIG. 8 is a sectional view along the section line 8-8 of FIG. 3;

FIG. 9 is a front elevational view of a second embodiment of the air purifier showing our new design;

FIG. 10 is a rear elevational view of the second embodiment thereof;

FIG. 11 is a left side view of the second embodiment thereof;

FIG. 12 is a right side view of the second embodiment thereof;

FIG. 13 is a top plan view of the second embodiment thereof;

FIG. 14 is a bottom plan view of the second embodiment thereof;

FIG. 15 is a top, front and right side perspective view of the second embodiment thereof; and,

FIG. 16 is a sectional view along the section line 16-16 of FIG. 11.

The evenly broken lines in the drawings illustrate portions of the article that form no part of the claim. 

CLAIM The ornamental design for an air purifier, as shown and described. 